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SECTION 9 SMITH REPAIRS For damaged pipe and for leaking l. Dissect the secondary contain- in Figure 2.9.4. to provide joints, Smith Fiberglass Products ment fitting and the secondary clearance for the coupling. recommends only the repair containment pipe around its methods listed below. See Figure circumference as shown by the 5. Bond the elbow and contain- 2.9.1 which shows where leaks arrows in Figure 2.9.3. Remove cromensleeve cowlings into place a can occur if secondary containment the containment elbow. according to instructions in joints are not properly bonded. Part Two, Section 7. DO NOT attempt to repair dam- 2. Create a pipe nipple at least 7 p p inches(178 mm) long on either 2.9.2 Repairing minor pipe damage aged fittings. Upon completion of required repairs and before put- side of the joint by making Follow the pipe patching instruc- ting the line back into service, another cut th around the circum- tions in Part One,Section 8,of this always pressure test the repair pi e as of the containment manual when the damaged area work according to the procedures pipe as shown in Figure 2.9.4. is two inches (51 mm) or less in Part Two, Section 8, to assure 3. Using a sander, coarse file, or in diameter (See Figure 2.9.6). the integrity of the system. 30-40 grit emery cloth, remove 2.9.3 Repairing extensive pipe 2.9.1 Replacing leaking secondary surface gloss from both ends of damage containment joints the nipples and the contain- (Do not use this procedure for ment pipe. Sanded area must When damage is less than two containment crossovers) be a minimum of 31/2 inches(89 inches (51 mm) long, but more mm) in length. than two inches (51 mm) around Example:90° Secondary Contain- 4the circumference of the pipe,the ment Elbow . Position the nipples between following repair procedures should the new containment elbow be followed. When cutting out and replacing a and containment sleeve cou- secondary containment fitting, be plings as shown in Figure 2.9.5. If the pipe is buried, excavate a careful not to cut the internal Note: It may be necessary to working area large enough to allow primary product pipe. (See Figure remove additional sections of for repairs to be made.A secondary 2.9.2.) the containment pipe as shown containment sleeve coupling should Pipe to Fitting Tab I I Patch � � Damage I I Fitting Tab to Fitting Tab Figure 2.9.1 Figure 2.9.6 34